Paper-bag machine



(No Model.) 2 Sheets-Sheet 1. D. APPEL.

PAPER BAG MACHINE. No. 340,081. Patented Apr. 2.0, 1886.

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Patented Apr. 20, 1886.

UNITED STATES PATENT OFFICE.

DANIEL APPEL, OF CLEVELAND, OHIO, ASSIGNOR TO THE UNION PAPER BAG MACHINE COMPANY, OF PHILADELPHIA, PENNSYLVANIA.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 340,081, dated April 20, 1886.

Application filed August 14, 1885. Serial No. 174,377.

To all whom, it may concern.-

Be it known that I, DANIEL APPEL, a citizen of the United States, residing at Cleveland, county of Cuyahoga, and State of Ohio, have invented certain new and useful Improvements in PaperBag Machines, fully described and represented in the following specification and the accompanying drawings,forming a part of the same.

This invention relates, generally,to that class of bag'machines which are adapted to operate upon a web of paper to form the same into a continuous tube have either plain or bellowsfolded sides, sever the tube into short lengths or bag-blanks, and paste and fold one end of each blank to form the bag-bottom. The invention, however, relates more particularly to that part of the machine by which the tube is severed into bag lengths or blanks and the ends of the blanks pasted and folded to form the bag-bottoms.

In the accompanying drawings, Figure 1 isa plan View of so much of a bag-machine as is necessary to illustrate the construction and operation of the present invention. Figs. 2 and 3 are side elevations of the same,looking from opposite sides of the machine. Figs. 4, 5,and6 are diagrammatic sections showing the pasting, severing, and folding devices in different positions. Fig. 7 is an enlarged view of a portion of Fig. 6, and Fig. 8 is a plan view of the stationary member of the severing device.

Referring to said drawings,it is to be understood that the mechanism constituting the present invention is designed to be usedin connection or combined with any of the ordinary forms of tubing mechanism-such, for example, as that shown in Letters Patent No. 87,689, for forming a web of paper into a plain tube, or as that shown in Letters Patent No. 138,844, for forming a web of paper into a bellowssided tube. These forms of tubing mechanism being well known in the art,are not illustrated herein. A portion of the former of such a tubing mechanism is,however,shown in order to aid in an understanding of the present invention. This former 99 is of the usual construction, and is reduced in width near its (No model.)

forward end for a short distance, so as to form a contracted portion, 66, which passes between the usual feed-rolls, 50 60. These rolls are connected by gears 51 61, so as to turn in unison, and receive motion through a gear, 62, from the main shaft63, which is provided with 55 the usual fast and loose pulleys, (ii 65. The upper feed-roll, 50, is cut away at its center,

as shown, so as to permit the passage of the contracted portion 66 of the former, and also so as to not press the paste outof the freshly- 6o pasted seam of the tube. This roll is mounted in yielding bearings formed by the rubber disks or springs 22, which are arranged, as shown, so as to cause the roll to nip against its companion with a yielding pressure. The forward end, 67, of the former 99 is provided with a serrated edge, 8, and directly beneath the end 67 there is located a short table, 23. which is supported upon a transverse rod,2 i, and the forward edge of which is serrated, so 70 as to form an edge, 9, similar to the edge 8. The table 23 is so positioned that the edge 9 will lie a short distance in the rear of the edge 8.

The operation of the organization thus far described is as follows: The web of paper, led from a roll supported at the rear of the machine, is folded around the i'ormer 99 by the usual devices, so as to form either a plain or bellows-sided tube, as may be desired, one So edge of the web being provided with a line of paste, so that when the two edges are brought together and lapped upon thetop ofthe former they will be united and form a continuous tube. The tube thus formed is entered be- 8 tween the rolls 50 60, where its edges are acted upon by the end portions of the rolls, which bite the tube at the sides of the narrow portion 66, and by which rolls it is fed forward beyond the end 67 of the former, its upper side being on top of the former and its under side below the former and on top of the table 23.

The organization thus far described is sub stantially the same as that shown in many prior Letters Patent, and is well understood 5 by those familiar with the art, the only difference being that the table 23, having the edge 9, is arranged below the end 67 of the former,

whereas in most or all of the prior organizations the edge 9 has been above theend of the former. In all of these prior organizations the severing of the tube was effected by means of a striker, which was arranged to sweep upward past the end of the former and the table 23, so as to strain the sides of the tube over the edges 8 9, and thus sever them, the locastriker of the former constructions is dispensed with, the severing of the tube by straining it across the edges 8 9 and the folding over 'of the severed end being accomplished by a single blade, which is arranged to perform both functions. To effect this a pair of folding-rolls, 30 31, are located directly beneath the edges 8 9 and in position to co-operate with an ordinary vibrating foldingblade, 32, which is secured to arms 33, pivoted in the side frames of the machine and arranged to sweep downward JllSi) in front of the edges 8 9, so as to'strain the plies of the tube across these edges, as

, shown in Fig. 5, and sever them, and then,

continuing its downward movement, fold the end of the severed blank or bag length into the bite of the rolls 30 31, as shown in Figs. 6

and 7.

lt will be observed that, by reason of the relative arrangement of the edges 8. 9, the under ply, 2, of the tube, when severed, projects beyond the upper ply, 3, so that when the two are folded over, as shown in Fig. 7, both can be readily pasted to the body of. the bag, thus f rming a tight bottom.

The folding-rolls 30 31 are connected by ge 34 in fi usual manner, and are driven at the same surface-speed as the rolls 50 by means of intermediates 35 36, which are fixed to a sleeve, 37, upon a transverse shaft, and receive motion from a gear, 39, upon the shaft of the roll 60.

The folding-blade 32 is operated as follows: The pivot of one of the arms 33 is extended through the frame, and is provided with an arm, 40, which is connected by a rod, 41,with a crank-arm, 42, fixed on the end of the shaft 38, which shaft is provided at is opposite end with a gear, 43, which engages .with a gear, 44, which is secured to the face of a gear, 45, which engages with the gear 61 upon the shaft of the roll 60.

' In order to close the bottom of the bag it is of course necessary that a line of paste should be applied in such manner that when the plies 2 3 are folded over, as shown in Figs. 6 and 7, they will be caused to adhere to the bag-body. For this purpose there is provided a pasting apparatus, consisting of an ordinary fountain and fountain-roll, 12 13, and a rotating pasting blade, 14. The blade l4vis made of rubber or i otherslightly-yielding material, and is secured 1 to a shaft, 15, which is journaled in the side frames, and is provided at its end with a small bevelgear, 4, which engages with a similar gear, 5, upon one end of arshaft, 16, the other end of which is provided with a similar gear, 6, which engages with a similar gear, 17, upon the shaft 38. These gears are so proportioned that the shaft 15 and pasting-blade 14 will make one revolution to each vibration of the folding-blade 32, and the blade 14 is'sotimed and arranged that as it is revolved its edge will come in contact with the fountain-roll 13, so as to receive a quantity of paste, which, as it continues its revolution, it will deposit upon the tubejust' in advance of the fold-line, and in such position that when the plies 2 3are folded over they will be pasted to the body of the bag. The shaft of the fountain-roll 13 is provided with a worm-gear, 18,which engages with a worm, 7, upon the shaft 16, and by which the roll is slowly revolved, soas to keep a supply of paste in position to be taken by the blade 14.

It is very desirable that a machine of this character should be so organized asto be capaable of producing bags of diiferent sizes. This can be accomplished either by varying the width of the bag or varying its length. In the first case it is necessary to change the width of the former and the position of the devices which co-operate with it to form the tube, so as to vary the width of the tube. In the second case it is necessary to change the movement of the folding and pasting blades 32 14,

with relation to the feeding-rolls 50 60, so asto allow a greater or less length of the tube to be advanced past the edge 8 of the former between two vibrations of the foldingblade. To effect this, the stud 46, upon which the gears 44 45 are mounted, issecuredin acurved slot, 47, so that it can be shifted to difl'erent positions without disengaging the gears 45 61.

This permits the gear 44 to be removed and a larger or smaller one substituted, so as-to change the speed of the blades 32 14 without changing the movementsof the feeding-rolls 5O 60 and folding-rolls 30 31. By thus changing the size of the gear 44 a greater or less length of the tube can be advanced'past the end of the former between each two vibrations of the folding-blade, so as to produce bags of any desired'length.

Although the folding-blade 32 is herein shown as operated'by a crank, it is of course to be understood that it can be operated equally well by a cam, such asv is commonly employed for operating this class of foldingblades,

What I claim is I 1. The combination, with the folding-rolls 3O 31, of the edges 8 9 and the blade 32, substantially as described. p

2. The combination, with the folding-rolls 30 31, of the edges 8 9, blade 32, and a pastmy hand in the presence of two subscribin ing apparatus, substantially as described. witnesses. b

3. The combination, with the folding-rolls 30 31, of the edges 8 9, blade 32, and the re- D ANIEL APPEL' 5 volving pasting-blade 14, and paste-fountain \Vitnesses:

and fountain-roll, substantially as described. T. H. PALMER,

In testimony whereof I have hereunto set GEO. H. GRAHAM. 

